Nike offers Apple Watch Series 3 GPS + Cellular 42mm for $343.20 shipped when promo code APPLE20 is applied during checkout. Regularly $429, today’s deal is a match of our mention back in August and the best available. Apple Watch Series 3 sports a water-resistant design and built-in cellular, making it perfect for outdoor activities. Of course, be sure to note that we’re expecting to see new Apple Watch models on Wednesday at the keynote event.